Knife



Mar. 27, 1923. 1,449,520

E.I EVVTS KNIFE Filed Apr. 15,'1922 2 sheets-sheet 1 INVENTOH EliasLewis,

' ATTORNEYS WITNESSES Mar. 27, 1923. 1 449 520 ,7

' E. LEWIS Filed Apr. 15, 1922 2 shets-sheet 2 WITNESSES IIWEIVTOR EliasLewis v A TTOIM'EVS Patented Mar. 27, i923.

lJNlT' srars ELIAS LEWIS, OF TERRE HAUTE, INDIANA.

KNIFE.

Application filed April 15, 1922. Serial No. 552,888.

T all to ham it may concern Be it known that I, ELIAS LEWIS, a cit-i zenof the United States, and resident of Terre Haute, in the county of Vigoand State of Indiana, have invented certain new and useful Improvementsin Knives, of which the following isa specification.

My invention relates to improvements in knives of the type ofconstruction disclosed in Letters Patent of the United States knifedisclosed in my aforesaid patent, is

adapted for use in marking, splitting, trimming and cutting operations,particularly with composition roofing, beaver board, leather, pasteboard, felt and the like, candy and as a pruning knife for trimmingshrubbery, vines, trees and the like. I i

A still further object of my invention is to provide a knife of thecharacter described which will be extremely durable in the serv ice forwhich intended.

Other objects and advantages will be apparent from the followingdescription, and the novel features of the invention will beparticularly outlined in the appended claims. My invention isillustrated in the accompanying drawings, forming a part ofthisapplication, in which Fi ure 1 is a side elevation of a knife embodylngthe invention in the form'now pre ferred by me, I

Figure 2 is an enlarged vertical longitudinal section through the knifeexhibited in Figure 1,

Figure 3 is a section along the line 33 of Figure 2,

Figured is a section along theline 4- of Figure 2, v

Figure 5 is a side elevation of another embodiment of the sameinvention,

Figure 6 is a longitudinal vertical section through the knife shown inFigure 5,

Figure 7 is a section along the line 7-7 of Figure 6, and

Figure 8 is an enlarged plan View of a fragmentary portion of thestructure shown in Figure 5. I i i In carrying out my invention in theform in which illustrated in Figures 1 to 4 inelusive, I provide asubstantially U-shaped yoke or blade holder consisting of a web portion1 and parallel arms 2, 2. The arms 2, 2 are arranged to straddle alongitudinal extension 3 at the forward end of a filler plate 4 which isdisposed between the complementary longitudinal sections 5, 5 of ahandle which is indicated generally at 6.

The sect-ions 5, 5 of the handle are preferably made of wood whilethefiller plate and the yoke are preferably made of steel or othersuitable ,metal. The lapped portions of the arms 2, 2 the filler plate 4and the handle sections 5, 5 are secured together by transverselyextending rivets 7 or the like. The arrangement issuch that theextension 3 terminates at its outer end short of the web 1 0f the yokeand extends.

substantially along the longitudinal axis of the handle, beingsubstantially flat and formed wit-h straight side edges Sand 9respectively, which are spaced at their inner ends equi-distantly. fromthe outer wall of the handle, as best seen in Figures 2 and 3.

The numeral 10 denotes a sharp edged and sharp pointed blade formarkingand trim- 11 is adapted to lie flat against the edge 9 of theextension 3 for the greater part of its length, being beveled at itsinner end,

as indicated at 12. The second blade 13 which is a stub blade forcutting and splitting is arranged with the shank or body portion thereofextending between the web '1 of the yoke and the outer end of a slidableclamp bar 1 1. The body or shank of the blade 13 is received at itsextremity in a notch or cut away portion 15 inthe extenon the blade 10.v that whenthe locking rem-rue 1G is rotated 10 and extends along theedge 8 of the extension 3 with the inner end thereof disposed betweenthe complementary sections 5, 5 of the handle. The slidable clamp bar 14is beveled at its inner end, as at 15. t

A locking ferrule 16 is rotatably mounted upon a reduced forward endportion 1710f the handle with one end thereof in abutting relation tothe inner end of the filler plate ,4 and to ashoulder defined on thehandle in one direction the blade will be clamped against'the webportion 1 'andthe blade 13 will likewise be clamped against the webportion l-by the slidable bar 14. When the locking. ferrule 16 isrotated in the opposite direction, the blades 10 and 13 will be releasedand may be removed from the yoke or blade holder.

providing a longitudinal aperture in the tiller plate 4. The end plate24 is apertured to receive stud projectionsfZG, 26 which extendifrom therear end ofthe filier plate "35 4'and are projected through theapertures A blade 22 for cleaning the blades 10 and His in'sertablethrough a slot 23 in an end plate24 into a compartment 25 formed byofthe end plate and upset, as at 27 to hold the end platelto the rearend of thehandle.

From the foregoing description of the various parts of thedevice, theoperation thereofmay be readily understood. The

bladesfilO-and'13.,have their points andcertain ofitheir projectingedgessharpened so as to adapt these blades. for usein the service forwhich intended. The blades can be removed readily and resharpaned, whenrequ1red,iorreplaced at small costwhen worn tosuch an extent .as to beun'serviceable.

lathe form of the device illustrated in Figures 5 to 8 inclusive, anextension 30 tothe, filler plate 4 extends from the forward end of the'latter'with its outer edge3l in the plane of the corresponding edges ofthe arms 2, 2 of the yoke, thus providing a shoulder 32 at the junctureof the extension 30a'nd the filler plate 4; The shoulder 32 is inalignment with a shoulder '33, formed on the opposite edge of the fillerplate 4 and in alignment with a shoulder 34 defined by reducing theforward end portion of the handle 6 torec'eive a locking ferrule 35. Thelatter therefore has its inner ,end abutting the shoulders32;and 33 andtheshoulder 34 of the handle. The outer end of the extension 30terminates at an appreciable distance from the web portion 1 of theyoke. The

locking ferrule 35 is formed to provide an inclined or cam surface 36 onits outer entl which engages a'shoulder 37 with which the marking andtrimming blade 38 is provided. The blade 38 has a body portion 39received between the arms 2, 2 of the yoke. The body portion 39 is cutaway at one corner, as indicated at 40 to receive the end of'the b'odyof'a'cutting and splitting blade 41. lateral projection 42 of the blade41 is adapted to enter'an'otch 43 in the wall of the cut-away portion ofthe body of the blade 38, whereby the blades 41 and 39 will be lockedand both clamped against the web portion 1 when the locking ferrule 35is' rotated in one direction. When the locking ferrule 35 is rotated inthe opposite direction, the blade 38 may be moved away from the webportion 1 and boththe blades'38 and 41 displaced from the yoke forsharpening or for any other purpose. A cap 44 is provided for the rearend of the handle 6 in the form of the device illustrated in Figures 5to 8 inclusive. The filler plate 4 is secured to the handle and'to thearms 2, 2 of the yoke by rivets 47 as inthe'preferred form of thedevice. The remaining parts of the form of the device illustrated inFigures 5 to 8 inclusiveare precisely identical in essential respectswith corresponding parts of the preferred form of the device, which hasbeendescribed hereinbe-' fore, and in consequence no descriptionof theseparts is deemed to be necessary herein; The same reference numerals havebeen used to designate like parts of the several forms of the deviceillustrated in the drawings.

The operation of the form of the device illustrated in Figures 5to-8;inclusive likewise is identical in essential respectsfwith theoperation of the-preferred form of tl'iegdevice and adescriptionthere'of is" therefore deemed unnecessary herein.

Obviously, my invention issusceptible of embodiment in forms other thanthat in which illustrated, in: the accompanying drawings, andI thereforeconsider asmy own all modifications and adaptations, there ofwhichfairly fall within the scopeof the appended claims.

I claim V I e p a l. A "knife comprising a plurality of blades, asubstantially -U- shaped yoke -fhaving arms spaced apart to receiveportions of theblades,,a filler plate having a1 1;exten-- sioninterposed between saidiarms, and spacmg said blades apart, a handleoverlapping the end portions; of the. arms of 'said yoke,

means securing the handle, the tiller plate and said yoke together, andmeans operable to clamp said blades against-the web of said yoke and topermit the releaseofsaid blades at will. M

2. A knife of the character described comprising a filler plate having abar like extension at the forward end thereof, a substantially U-shapedyoke having arms straddling the extension and the forward end portion ofthe filler plate and having a web portion spaced from the end of theextension, a handle overlapping the filler plate and the end portions ofthe arms of the yoke, means for securing the handle, the filler plateand the arms of the yoke together, a marking and trimming blade having abody adapted tomove between the arms of said yoke in sliding contactwith one edge of said extension to the filler plat-e, said blade havinga shoulder at its edge proximate to the handle, and the body thereofhaving a portion cut away at the edge thereof proximate to the webportion of the yoke, said cut-away portion having a notch formed in awall thereof, a cutting and splitting blade having a body insertable between the end of the extension and the web of the yoke into the cut-awayportion of the body of first blade and being provided wit-h a projectionadapted to enter the notch in the wall of the cut-away portion of thefirst blade, and a locking ferrule rotatably mounted upon the handle andhaving a cam surface engaging the shoulder of the first blade, wherebythe said blades will be locked together and both held against the web ofthe yoke when the ferrule is rotated in one direction, and released whenthe ferrule is rotated in the opposite direction.

3. A knife of the character described comprising a filler plate having abar like extension at the forward end thereof, a substantially U-shapedyoke having arms straddling the extension and the forward end portion ofthe filler plate and having a web portion spaced from the end of theextension, a handle overlapping the filler plate and the end portions ofthe arms of the yoke, means for securing the handle, the filler plateand the arms of the yoke together, a marking and trimming blade, havinga body adapted to move between the arms of said yoke in sliding contactwith one edge of said extension to the filler plate, said blade having ashoulder at its edge proximate to the handle, and the body thereofhaving a portion cut-away at the edge thereof proximate to the webportion of the yoke, said cut-away portion having a-notch formed in awall thereof, a cutting and splitting blade having a body insertablebetween the end of the extension and the web of the yoke into thecut-away portion of the body of first blade and being provided with aprojection adapted to enter the notch in the wall of the cut-awayportion of the first blade, a locking ferrule rotatably mounted upon thehandle and having a cam surface engaging the shoulder of the firstblade, whereby the said blades will be locked together and both heldagainst the web of the yoke when the ferrule is rotated in onedirection, and released when the ferrule is rotated in the oppositedirection, and a cap for the rear end of said handle.

ELIAS LEWVIS.

